GeoRuby provides geometric data types from the OGC 'Simple Features' specification.

RGeo is a geospatial data library for Ruby. RGeo::Shapefile is an optional RGeo module for reading the ESRI shapefile format, a common file format for geospatial datasets.

Fast and precise time zone by geo coordinates lookup

Imports Russian FIAS database into SQL (for Ruby on Rails on PostgreSQL projects)

An earth-simulation environment with ActiveRecord models and data

Use together GeoRuby, Rgeo, Geokit, Proj4j (and others)

Convert files of chess tournament data in different formats to ruby classes and vice-versa.

Ruby library for using Siemens, Schneider and Intouch files

Encapsulates the CitySDK api.

"A small tool for reading United States Census TIGER/Line Shapefiles."

A gem for reading ESRI Shapefiles.

Converts DBF to modern formats.

Posts data from automation systems to dubbletrack.com. Requires dubbletrack account

Library to read and write ESRI Shapefiles

Use HeyDan to download, munge and manage data for jurisdictions

Imports INEGI geospatial database into a readable CSV

Library that can convert KLADR.DBF and STREET.DBF to SQLite database file

A gem for reading ESRI Shapefiles.

I made this gem because the current Google Maps API for time zones is not completely precise when it comes to US time zones. There are certain esoteric time zone boundaries in the US for which the Google Maps time zone API does not account perfectly.

Provides analysis of (geo)data files.